“Does it require a c wire”

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• Yes

  Answered by Terryb 4 years ago

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• Though Nest thermostats would generally work without a common (C) wire, there are some systems that would require a C wire on the new Nest Thermostat like a heat only or cool only systems. But sometimes, you may need to connect a common wire (C wire) or power accessory, like the Nest Power Connector, to make your system compatible. Here are some scenarios when C wire is required: - When you set up your thermostat, the Google Home app tells you that you need the Power Connector or a C wire. - Your thermostat screen shows a power-related help code, such as E1, E297, N260 or N261. - Your thermostat screen shows “Very low battery. Replace now and install stable power source.” - Your thermostat battery keeps draining. - Your thermostat keeps disconnecting from Wi-Fi. For further assistance, feel free to contact us here anytime: https://support.google.com/googlenest/gethelp

  Answered by Nest Support 4 years ago

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